<template>
  <div class="container">
    <div class="app-container">
      <el-tree :data="depts" :props="defaultProps" default-expand-all highlight-current :expand-on-click-node="false">
        <template #default="{data}">
          <el-row style="width:100%;height:40px" type="flex" justify="space-between" align="middle">
            <el-col>{{ data.name }}</el-col>
            <el-col :span="4">
              <span class="tree-manager">{{ data.managerName }}</span>
              <!-- $event 实参 表示类型 -->
              <el-dropdown @command="handleCommand($event,data.id)">
                <!-- 显示区域内容 -->
                <span class="el-dropdown-link">
                  操作<i class="el-icon-arrow-down el-icon--right" />
                </span>
                <!-- 下拉菜单选项 -->
                <el-dropdown-menu slot="dropdown">
                  <el-dropdown-item command="add">添加子部门</el-dropdown-item>
                  <el-dropdown-item command="edit">编辑部门</el-dropdown-item>
                  <el-dropdown-item command="del">删除</el-dropdown-item>
                </el-dropdown-menu>
              </el-dropdown>
            </el-col>
          </el-row>

        </template>
      </el-tree>
    </div>

    <Dialog
      ref="dialog"
      :dialog-visible.sync="visible"
      :pid="currentId"
    />
  </div>

</template>

<script>
import { getDepartmentList, delDepartment } from '@/api/department'

import { transListToTreeData } from '@/utils'

import Dialog from './components/Dialog.vue'

export default {
  name: 'Department',
  components: {
    Dialog
  },
  data () {
    return {
      visible: false,
      currentId: null,
      depts: [{
        name: '传智教育',
        children: [
          { name: '总裁办' },
          { name: '行政部' },
          { name: '财务部' }
        ]
      }],
      defaultProps: {
        children: 'children',
        label: 'name'
      }
    }
  },
  created () {
    this.getDepartmentData()
  },

  methods: {
    // 点击操作选项打开dialog弹窗
    handleCommand (type, id) {
      // 添加操作
      if (type === 'add') {
        this.currentId = id
        this.visible = true
      } else if (type === 'edit') {
        this.currentId = id
        this.visible = true

        // 因为vue更新是异步，在props的currentdId修改之前，已经创建了子组件发送了请求，所以要使用$nextTick实现异步传参
        this.$nextTick(() => {
          // 调用子组件上的方法
          this.$refs.dialog.getDepartmentInfo()
        })
      } else {
        this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'error'
        }).then(async () => {
          try {
            await delDepartment(id)

            this.$message.success('删除成功')

            this.getDepartmentData()
          } catch (error) {
            console.log(error)
          }
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
      }
    },
    // 发起获取列表数据的请求
    async  getDepartmentData () {
      const data = await getDepartmentList()

      const res = transListToTreeData(data, 0)

      this.depts = res
    }
  }
}
</script>

<style scoped>
.app-container {
  padding: 30px 140px;
  font-size: 14px;
}
.tree-manager {
  width: 50px;
  display: inline-block;
  margin: 10px;
}
</style>
